Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ 13,909	$ (170)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	14,293	14,004
Deferred income taxes	1,808	4,295
Restructuring charges	1,475	2,612
Losses (gains) on dispositions of property and other assets	(8)	37
Share-based compensation expense	2,293	1,800
Excess tax benefit from share-based compensation arrangements	(54)
Other non-cash items, net	2,411	1,852
Change in operating assets and liabilities:
Receivables	(43,590)	(23,444)
Inventories	8,538	6,902
Accounts payable	14,334	14,415
Restructuring liabilities	(2,377)	(5,016)
Accrued compensation	7,267	9,342
Customer deposits	(7,390)	(1,856)
Income taxes payable	3,141	(130)
Other assets and liabilities, net	(10,083)	(6,359)
Net cash provided by operating activities	5,967	18,284
Cash flows from investing activities:
Capital expenditures	(12,795)	(8,404)
Acquisition of businesses, net of cash acquired	(25,800)
Proceeds from dispositions of property and other assets	264	14,541
Net cash provided by (used in) investing activities	(38,331)	6,137
Cash flows from financing activities:
Payments on debt and capital lease obligations	(5,631)	(2,869)
Dividends paid on common stock	(1,630)	(1,644)
Common stock purchased for treasury	(679)	(573)
Debt issuance costs	(1,001)
Excess tax benefit from share-based compensation arrangements	54
Proceeds from exercise of stock options	163	38
Net cash used in financing activities	(8,724)	(5,048)
Effect of exchange rate changes on cash and cash equivalents	2,595	(1,744)
Net increase (decrease) in cash and cash equivalents	(38,493)	17,629
Cash and cash equivalents, beginning of year	145,841	116,342
Cash and cash equivalents, end of period	107,348	133,971
Supplemental disclosure of cash flow information
Cash paid for income taxes	5,541	3,855
Cash paid for interest	490	511
Equipment acquired under capital leases	$ 897	$ 390